Cytosine, thiamine, uracil are prima de bases. ade dune and guanche are purine bases.
The cellular structure that was visible in the transmission electron micro graph but not visible in the cells when microscope was used is NUCLEOLUS.
The transmission electron micro graph is a microscopy method that involves using electrons beams to form image of specimens. Transmission electron micro graph can be used to view minute structures of the cell because of its higher optical capacity.
The nucleolus was not seen under the microscope because is a very small cell structure.
Answer: In recent times, reproductive biotechnologies have emerged and started to replace the conventional techniques. It is noteworthy that for sustained livestock productivity, it is imperative to start using these techniques for facing the increasing challenges for productivity, reproduction and health with impending environment conditions. These recent biotechniques, both in male and female, have revolutionized
Explanation:yw
Carbon is one of the most common elements
Can form bonds and double bonds with up to 4 other atoms, including other carbon atoms
If you add more elements and you can create amino acids, and that is the base of all proteins.
If you need more help on this, watch some videos by Neil Degrasse Tyson. World-renown astrophysicist (and my idol) who does lots of talks about things just like this.<span />
Is called Trisomy 13 also called Patau Syndrome
